The BMW 3 F30 is the sixth generation of the BMW 3 series, which first hit the market in 2012. The lineup includes the F30 sedan, the F31 station wagon, and the F34 sloping roof model, as well as the M3 – F80, which was produced in 2013, 2014, 2015, 2016, 2017, and 2018. This text gives you the lowdown on where the fuse and relay boxes of the BMW F30 are located, including diagrams and photo examples. Also we focus on the cigarette lighter fuse.
The assignment of fuses and relays may differ from that shown, depending on the year of manufacture and the level of electrical equipment.
Contents
Engine compartment
Fuse and relay box
It is located under the hood, on the right side of the engine compartment, closer to the windshield. To access, remove the protective cover.
Diagram
Assignment
| 18 | 15A Diagnostic connector |
| 19 | 10A Engine control |
| 20 | 5A Audio control unit, roof electronics |
| 21 | 5A Control unit |
| 22 | 7.5A Door locks |
| Passenger rearview mirror, interior lighting | |
| 23 | 10A DDE main relay |
| 24 | Electronic automatic transmission (EAT) control unit, 4*4 |
| 25 | 5A Touchbox, audio |
| Body control unit, abs, praking | |
| 26 | 5A Seat heating |
| 27 | 10A Driver/passenger seat lumbar support valve block, driver/passenger side seat adjustment switch block |
| 28 | 5A Front left lamp |
| Front right lamp | |
| Rain sensor | |
| Interior lighting | |
| 29 | 5A Coolant pump |
| 30 | |
| 31 | |
| 32 | Transfer box, security system |
| 33 | 15A Coolant pump |
| Air conditioning compressor | |
| Additional water pump | |
| 34 | 10A Safety system, seat belt |
| 35 | |
| 36 | 40A |
| 37 | 40A |
| 38 | |
| 39 | |
| 40 | 15A Headlights, outdoor lighting, dimensions |
| 41 | 10A |
| 42 | Electrochromic rearview mirror |
| 43 | |
| 44 | 5A Driver support systems based on a video camera, active steering system |
| 45 | 5A Cruise control |
| 46 | 5A Crankcase ventilation heater |
| Coolant shut-off valve, louvre | |
| 47 | 5A Night vision electronics (NVE), vehicle sound generator (VSG) |
| 48 | 10A Steering column switches |
| 49 | |
| 50 | 5A Instrument cluster |
| 51 | |
| 52 | 7.5A Instrument cluster |
| 53 | 5A Glove box lighting, instrument panel trim strip lighting (driver/passenger side), instrument panel trim strip lighting on driver’s side, driver/passenger footwell lighting |
| 54 | 7.5A Selector switch |
| 55 | 5A Electronic power steering (EPS) |
| 56 | 5A Air quality sensor, ventilation system |
| 57 | 40A Fuse box, Headlights, outdoor lighting, dimensions |
| 58 | 30A Dynamic Stability Control (DSC) |
| 59 | |
| 60 | |
| 61 | |
| 62 | 30A Retractable roof |
| 63 | 30A Transfer box |
| 64 | 20A Front passenger seat heating module |
| 65 | 20A Driver seat heating module |
| 66 | 20A Cigarette lighter |
| 67 | 30A Driver’s seat control unit |
| Driver seat adjustment | |
| 68 | 30A Passenger seat adjustment |
| Passenger seat control unit | |
| 69 | 20A 12V socket |
| 70 | 20A Heating |
Fuses 66 and 69 for 20A are responsible for the operation of the cigarette lighter.
Power fuse box
A power fuse box is installed next to the fuse and relay boxes
Diagram
Designation
- FL1 – 50/80/125A Trip relay
- FL2 – 125A Electronic power steering (EPS)
- FL3 – 100A Additional heater
- FL4 – 40A Heated fuel filter
- FL5 – 40A Dynamic Stability Control (DSC)
- FL6 – 40A Fan motor
Relays and fuses of the DDE unit and a 50A fuse for the coolant pump, relay of the electric fan K5 can also be installed nearby.
Passenger compartment
Fuse box
Fuse and relay box is located on the A-pillar on the passenger side.
Scheme
Allocation
- 54 pin connector
- 12 pin connector
- 42 pin connector
- 54 pin connector
- Circuit breakers
- Connector (1-pin, plus terminal)
- Relay
- 54 pin connector
- 54 pin connector
- 54 pin connector
Fuses
Diagram
Photo
Appointment
| 1 | |
| 2 | |
| 3 | |
| 4 | 30A Passenger Power Window |
| 5 | 20A Central locking |
| 6 | 30A Power window driver |
| 7 | |
| 8 | |
| 9 | |
| 10 | 5A Control panel |
| Driver assistance system | |
| Heating, ventilation and air conditioning (HVAC) | |
| Light switch | |
| 11 | 7.5A 5Rear module |
| Left headlight | |
| 12 | 7.5A Diagnostic connector |
| 13 | 5A Telematics |
| 14 | 15A Horn |
Relay :
- driver’s power window
- front power window
- central locking
- headlight washers
- starter
- horn horn
- wiper at speed 1/2.
Luggage compartment
Fuse and relay box
There can be three fuse boxes in the luggage compartment. Two blocks (power fuse box and fuse box) are located behind the casing on the right side, near the battery.
The other is centered under the covery. More details in the video below.
Your exact fuse diagram is folded under the boot floor, inserted into a special place on the top fuse box (rolled paper). We provide one of the versions for review.
Diagram
Decoding
Power fuse box
Photo
- 50A Rear module
- 100A Fuse box
- 100A Power Distribution
- 125A Main relay
- 125A Integrated power module
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You have something to add? Write in the comments.
Thank you so much for this info. Without the diagram of the FEM unit I would not have been able to solve my central key locking problem.
Hello, I was wondering if you know where and what number is the fuse responsible of the driver master switch and the fuse for the idrive controller for 2014 BMW 328i XDrive.
Thank you
Do you no which relay works the horn as it works sometimes so not a fuse thanks
I am stumped, mechanic changed out my trubo charger on my 2015 BMW 320i & took it on a test drive without bleeding the system. The car never ran out of antifreeze but did overheat a bit but never released antifreeze , the waterpump is now not getting power. I have checked all fuses, connections & battery power distribution all checked out good. I have tried to bleed the system with no luck. Please any suggestions would be greatly appreciated. Once again thank you!
could someone please tell me if the back turn signal has a fuse? I check the wire n the back and I don’t get a signal. please help me. the diagram does not say what is each fuse. the pictures are not very clear. or where could I get the fuses list ?
Did you ever solve this.
I’m having an issue with my rear turn signals. All other light functions work brake, caution… Turn signals on both sides just stopped working.
where is the starter relay located